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What's the deal?

I

igneous

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I'm sorry if this is a stupid question, but I feel I have to ask it.

What's the deal with blu-ray lasers? They seem to be less powerful yet more expensive than green ones. Why is that? Can they burn stuff more effectively? Are they more visible? What am I missing?
 





cust11

cust11

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igneous said:
I'm sorry if this is a stupid question, but I feel I have to ask it.

What's the deal with blu-ray lasers? They seem to be less powerful yet more expensive than green ones. Why is that? Can they burn stuff more effectively? Are they more visible? What am I missing?
Click to expand...


Less powerful? hardly! We have member with 1/2watt bluray pointers! The typical PHR-803T build is between 100-140mW. They are much harder to see and the beam is almost non-existent to some people. The 405nm wavelength is almost ultraviolet and invisible to the human eye. People like these so much because it is the closest thing to blue (447nm~) that we can get for a very small fraction of the price.

A typical PHR-803T build will cost less than $60 and has the potential to produce over 125mW of power. We have some members with 170mW+ PHR lasers that have lasted months. Really, when it comes down to it... it is a personal prefrence. Every color laser has the same burning potential if you give it the things it needs; power and pinpoint focus. Hope this explained your questions.

-Mike
 
scopeguy20

scopeguy20

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The humane eye is much more sensitive to Green than violet, (blu-ray) light. The dollar cost is a lot less in violet 100+ mw than green. If the dot is the same size and the absorption is the same of the material, then green and Violet will burn equally. However, violet is often both better absorbed and tinyier dot, so more energy in a smaller spot, and better burning. Hope this helps some, there is tons more said elsewhere about this. -Glenn
 
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Meatball

Meatball

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actually its been observed that 405nm light is a little more readily absorbed than 532nm or 650nm light. You'll cut paper with with 150mw of 405nm, but not 650nm or something else like that.
 
Cenobite9

Cenobite9

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You'll cut white paper with >200mw of violet!!! Just had to throw that in since I've noticed green and red lasers don't do so well with white paper.
 
cust11

cust11

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makes me want to crank up my PHR to 215mA and see what she does o_O. I mean, it is only like 8 bucks if I LED it right..... oh don't tempt me.

-Mike
 
lasersbee

lasersbee

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Yeah... go for it... let us know how long it emitted 405nm coherent photons
before it turned into Genie smoke...:crackup:

@igneous.... just bwcause you can't see it with your eyes does not mean
it is not there or powerful....


Jerry
 
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cust11

cust11

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lasersbee said:
Yeah... go for it... let us know how long it emitted 405nm coherent photons
before it turned into Genie smoke...:crackup:

Jerry
Click to expand...


I am in the process of disassembling my PHR labby! I think I will shoot for 185mA and see if it takes that. 215mA may be in this little diodes future :evil:

-Mike

@ Laserbee: I chickened out and stopped at 156mA :cryyy: I have the focus set to about 3 1/2' and it instantly burns skin from that distance:D
 
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Grix

Grix

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Also, 405nm can draw on glow-in-the-dark objects and make objects fluoresce
 
3zuli

3zuli

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ok guys, but why are blue lasers (like this SONAR II Burner ) so expensive?? :thinking: you know there are some 6 or 8x bluray drives, wich cost max 200$... or PHR803T...
 
cust11

cust11

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3zuli said:
ok guys, but why are blue lasers (like this SONAR II Burner ) so expensive?? :thinking: you know there are some 6 or 8x bluray drives, wich cost max 200$... or PHR803T...
Click to expand...


They are advertising a bluray. There is a big difference between blue and bluray(violet). It is often misused. It is so expensive because they are feeding lines of bullshit to their customers to make money. A true BLUE diode (447~nm) uses DPSS technology which is basically (err... here we go) an IR diode used to pump specific crystals which produce Xnm light. That is why real blue is so exsensive. WL has no excuse. Don't ask me to explain that better... there are much more qualified candidates for that :p.

-Mike
 
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cavok84

cavok84

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Am I reading that right?? $2,000 for a blueray pointer at 60mw... terrible
 
E

ElektroFreak

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^You are reading that right. When the Sonar was first introduced, it was a novelty and close to the first ever blu-ray pointer, hence the price. While things have changed greatly since then, Wicked does not believe that it should lower its prices, so it's still $2000. I can only assume that this has hurt its sales, though. The PHR-803T diode is a ~60mW rated diode, so it's basically a PHR pointer.
 
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scopeguy20

scopeguy20

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Anyone want to buy my Sonar made by John Lawson? It will out perform a WL Sonar, and will be a lot less $ LOL! btw, it uses a 6x diode from a GGW -Glenn
 
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